ernst



(No Model.) zsnets-sheet 1. C. ERNST.

VISE.

No. 542,244. l PatentedJuly 9, 1895.

' 0' Wfl 2 Sheets-Sheet 2. C. ERNST` VISE (No Model.)

Patented July 9, 1895.

A W .2. Q

y mal C. J -m 4a,////////////V//////////////// I l/ barel'rm' .l IJNITESTATES CLARE ERNST, OF BAY CITY, MICHIGAN.

VISE.

SPECIFICATION forming' part of Letters Patent No. 542,244, dated July 9,1895.

Application iiled September 1l, 1894. Serial No. 522,708. (No model.)

To all whom it may concern,.-

Be it known that I, CLARE ERNST, acitizen of the United States,'residingat Bay City, in the county of Bay and State of Michigan, have inventedcertain new and useful Improvements in Vises, of which the following isa specication, reference being'had therein to the accompanying drawings.l

The invention consists in the construction of a vise of that type inwhich the nut in the stationary jaw is separable to be disengaged fromthe screw to permit of the quick adj ustment of the jaws to or from eachother; and the invention consists particularly in the peculiarconstruction of the actuating devices for such nut-sections; further, inthe peculiar construction of the swivel-support for the vise, and,further, inthe peculiar construction of the swivel-support for themovable jaw, and in the construction, arrangement, and combination ofthe various parts, all as more fully hereinafter described, and shown inthe accompanying drawings.

Figure l is a vertical central longitudinal section througha viseembodying my invention. Fig. 2 is a top plan view thereof, showing themovable jaw secured at an angle to the stationary jaw. Fig. 3 is aperspective View of the movable j aw and the swivel clamping plate ornut. Fig.' 4 is a horizontal section on line x os, Fig. l. Fig. 5 is avertical section on line y y, Fig. l. Fig. 6 is an elevation of thelower nut-section, showing the operating-lever and in dotted lines theposition of the upper nut-section when the sections are separated. Fig.7 is a perspective View of the bed-plate and the swivel-post of thestationary jaw, showing the manner of detachably and adj ustablyengaging that jaw in the plate.

A is the stationary jaw, and B the movable jaw, of a vise. Thestationary jaw has a transverse guideway, in which is slidingly securedthe tubular arm C of the movable jaw.

D is a tubular post on the lower side of the stationary jaw, having theange D', which rests upon the bed-plate D3, which may be secured to theusual bench, the post being swiveled upon this flange in a centraltubular aperture in the bed-plate.

'The bed-plate is provided with engaging notches a and the post isprovided with lugs b, adapted to enter these notches and to lock thepost (and vise) to the bed-plate by a partial rotation in the mannerplainly illust-rated in Figs. 1 and 7.

VAround the edge of the bed-plate in its upper face is formed theT-shaped slot c, in which the heads of clamping-bolts d engage. Thesebolts passthroughthe flange D and are provided with suitableclamping-nuts e above the flange, by means of which construction thevise may be held at any desired angle to the bench or bed-plate.

YThe forward end of the arm C is provided at its lower edge with theforwardly-extending plate E, upon which rests the jaw B. The jaw isprovided with a semicyliudrical boss E', engaging a grooved or curvedbearing E2 on the forward face of the arm C. The forward face of theplate F is of segmental circular configuration, and H is a depending lipfor the jaw, having its inner face of corresponding shape to fit theface of the plate and about which it is adapted to turn.

I is a clamping screw or bolt engaging a screw-threaded bearing in theplate, passing through a segmental slot in the lip and through anaperture in the curved clamping plate or nut J, which bears against theouter face of the jaw B, which is correspondingly curved.

K is a fan-shaped aperture through theV jaw B, through which the screw Jpasses, passing, also, through an aperture through the plate J andswiveled in the rear end of the arm C, as plainly illustrated in Fig. l.

It willvbe evident from the description of the parts last described thatby loosening the bolt I the jaw B may be turned at any desired angle tothe stationary jaw-as, for instance, as shown in Fig. 2-and then clampedin its adjusted position by tightening the bolt I.

M is a lip on the jaw B, engaging over the top o`f the arm C to preventdust, dirt, or shavings from entering the swivel-joint on which the jawB turns.

N is the upper section of the nut, having the leg N', and O is the lowernut-section,'

having the leg O, these legs depending into the post, separated fromeach other a sufti- IOO cient distance to permit of the actuating-leverP being arranged and operating between. This lever has a cam-head Q anda weighted offset Q at its lowei1 end. It is pivoted on the pin 7L inthe leg N of the upper nut-seetion and its cam-head is located betweentwo opposite cam-lugs 'i t" on the inner face of the leg of the lowernut-section.

II is a stop-pin located a short distance below the lowerend of the legof the lower nutsection in the closed position of the parts. (Shown inFig. l.)

R is a cord connected to the outer end of the cam-head, by means ot'which the lever and cam may be rocked about its pivot to open and closethe nut-sections in the following manner: The parts being as shown inFig. l, the weight Q willact to hold the cam head directly beneath thecam-lug t' and lock the two nut-sections tightly upon the screw. Vtlhenthe operator. draws upon the cord R, he rocks the lever about itspivotal point z, withtflrawing the cam from beneath the lng fi, and atthe same time the under face of the cam-head strikes the lng t" andforces the lower nut-section down until it strikes the stop-pin 7s, whenfurther movement of the lever will cause the lever to fulerum on the luge" and lift its pivotal point, thereby raising the upper nut-sectiontree from the screw, thus permitting the screw to be shi l'tedhorizontally without engagement of the screw in the nut.

It is evident that when the nut engages the screw by turning the screwthe movable jaw will be caused to approach or recede from thc stationaryjaw in the usual manner ot operating vises.

Thus it will be seen that this vise comprises a separable screw-nnt withmeans of opening it to admit of quick adjustment of the movable jaw, aswiveled movable jaw, and a swiveled post for supporting the entirevise.

What I claim as my invention is l. In a vise, the combination of abed-plate, a post swiveled thereon, a stationary jaw on the post, ahorizontal arm slidingly engaging in a transverse aperture in thestationary jaw, the movable jaw swiveled on the end of said arm, and theset screw passing through the arm and swivcled jaw snbstantiall r asdescribed.

2. In a vise, the combination ot a bed-plate, a post swiveled thereon, aflange on the post resting on the plate, lugs on the post adapted toenter notches in the plate and to be locked beneath the same by apartial rotation, and bolts on the post, entering undercut grooves inthe plate, to lock the post in its adjusted position, substantially asdescribed.

In a' vise, the combination of the stationary jaw, having a transverseaperture, an arm sliding therein, a screw in the arm, the plate E at;the forward end of the arm, the movable jaw supported on the plate andhaving a swivel joint connection with the forward end of the arm, aclamping bolt on the arm passing through a segmental slot in the jaw,and a clamping plate or nut on the outer face ot the jaw, with whichsaid bolt engages, and in which the screw is journaled substantially asdescribed.

4. In a vise, the combination of the stationary jaw having a transverseaperture, an arm sliding therein, the plate E at the forward end of thearm, the movable jaw supported on this plate, a fan shaped slot throughthe jaw the screw in the arm, passing through the fan shaped slot in themovable jaw, a clamping plate or uut supporting the outer end of thescrew, and securing devices for clamping the jaw between the arm C andthe clamping plate in its adjusted position, substantially as described.

5. Ina vise, the combination ofthe tubular post carrying the stationaryand movable jaws, the screw therethrough, the upper and lower nutsections engaging the screw, the separated legs on the nut sectionsdepending into the post, the lugs t '11 on the leg of the lower section.the lever pivoted to the inside of the leg ot the upper section betweenthe lugs, and the cam head on thelever, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

CLARE EtNST.

Witnesses:

LENA, F. Scusami, EDWARD A. 'lnnouum

